TY  - JOUR
A1  - Bauer, Maximilian
A1  - Godec, Aljaz
A1  - Metzler, Ralf
T1  - Diffusion of finite-size particles in two-dimensional channels with random wall configurations
T2  - Physical chemistry, chemical physics : a journal of European Chemical Societies
N2  - Diffusion of chemicals or tracer molecules through complex systems containing irregularly shaped channels is important in many applications. Most theoretical studies based on the famed Fick-Jacobs equation focus on the idealised case of infinitely small particles and reflecting boundaries. In this study we use numerical simulations to consider the transport of finite-size particles through asymmetrical two-dimensional channels. Additionally, we examine transient binding of the molecules to the channel walls by applying sticky boundary conditions. We consider an ensemble of particles diffusing in independent channels, which are characterised by common structural parameters. We compare our results for the long-time effective diffusion coefficient with a recent theoretical formula obtained by Dagdug and Pineda
Y1  - 2014
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/38309
SN  - 1463-9076
SN  - 1463-9084
VL  - 16
IS  - 13
SP  - 6118
EP  - 6128
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -